In case you can't read it, it says:
"Happy times are here again.
We'll never bake things queer again.
Let's have cake, the men will cheer again.
Happy times are here again!"
"Times are more sunny
Ma has more money
Eggs still come from a hen
to get in your kitchen
Let's all eat high again!"
The recipes are also adorably illustrated with a musical theme:
I guess if you didn't live through the Great Depression, you could take a little thing like baking powder for granted!